Question

Полезная мощьность на валу двигателя 90кВт. Суммарные потери мощьности в двигателе 10кВт Определить к.п.д двигателя.

Answer 1

А полная = 90 +10=100кВт

кпд=90/100=0.9 или 90%

 

 

Answer 2

Calculation of Efficiency (к.п.д) of the Engine

To determine the efficiency (к.п.д) of the engine, we need to calculate the input power and the output power. The input power is the useful power on the engine shaft, which is given as 90 kW. The output power is the total power losses in the engine, which is given as 10 kW.

Input Power (Полезная мощность): 90 kW Output Power (Суммарные потери мощности): 10 kW

To calculate the efficiency, we can use the formula:

Efficiency (к.п.д) = (Output Power / Input Power) * 100

Substituting the given values:

Efficiency (к.п.д) = (10 kW / 90 kW) * 100

Calculating the efficiency:

Efficiency (к.п.д) = 11.11%

Therefore, the efficiency of the engine is approximately 11.11%.

Please note that the search results did not provide specific information related to the calculation of efficiency for the given engine. However, the calculation provided above is based on the general formula for efficiency and the given values of input power and output power.